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Adding and Subtracting Mixed Numbers Using a Number Line
Conditional Remix & Share Permitted
CC BY-NC-SA
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This resource includes three tasks surrounding the Common Core Standard 5.NF.2 - Adding and Subtracting Mixed Numbers with Unlike Denominators Using an Open Number Line and Fraction Equivalence. The tasks involves looking at real Maryland snowstorm data and each task builds off the previous task.

Subject:
Education
Mathematics
Material Type:
Assessment
Homework/Assignment
Date Added:
07/17/2018
Algebra II
Conditional Remix & Share Permitted
CC BY-NC-SA
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This undergraduate level course follows Algebra I. Topics include group representations, rings, ideals, fields, polynomial rings, modules, factorization, integers in quadratic number fields, field extensions, and Galois theory.

Subject:
Mathematics
Material Type:
Full Course
Provider Set:
MIT OpenCourseWare
Author:
Artin, Michael
Date Added:
02/01/2011
Area Builder
Unrestricted Use
CC BY
Rating
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Create your own shapes using colorful blocks and explore the relationship between perimeter and area. Compare the area and perimeter of two shapes side-by-side. Challenge yourself in the game screen to build shapes or find the area of funky figures. Try to collect lots of stars!

Subject:
Mathematics
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Amanda McGarry
Ariel Paul
Beth Stade
Bryce Gruneich
John Blanco
Karina Hensberry (lead)
Kathy Perkins
Date Added:
01/08/2018
Arithmetic
Unrestricted Use
CC BY
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Remember your multiplication tables? ... me neither. Brush up on your multiplication, division, and factoring skills with this exciting game. No calculators allowed! The students will be given mutiplication and division problems which they must answer. They also have the option of being given a number then stating the factors of how that number was attained using either multiplication or division.

Subject:
Mathematics
Numbers and Operations
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Date Added:
05/01/2006
Bag of Marbles
Conditional Remix & Share Permitted
CC BY-NC-SA
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The purpose of this task is to help students develop fluency in their understanding of the relationship between fractions and ratios. It provides an opportunity to translate from fractions to ratios and then back again to fractions.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Author:
Illustrative Mathematics
Date Added:
04/26/2023
Benchmark Fraction Brownie Mix
Conditional Remix & Share Permitted
CC BY-NC-SA
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Students will be introduced to addition, multiplication, and division of the benchmark fractions 1/2, 1/3, and 1/4 with a fun, hands-on experience. Students will layer the dry ingredients for a brownie recipe into a canning jar while having a rich discussion that aides visualizing operations with fractions. This shared experience can be referred to during future instruction.

Subject:
Mathematics
Material Type:
Activity/Lab
Lesson Plan
Date Added:
04/13/2013
Build-a-fraction
Unrestricted Use
CC BY
Rating
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Build fractions from shapes and numbers to earn stars in this fractions game or explore in the Fractions Lab. Challenge yourself on any level you like. Try to collect lots of stars!

Subject:
Mathematics
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Ariel Paul
Karina Hensberry
Kathy Perkins
Mike Dubson
Sam Reid
Trish Loeblein
Date Added:
10/17/2012
CXC CSEC Computation - SO1
Unrestricted Use
CC BY
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The Caribbean Examinations Council (CXC) Caribbean Secondary Education Curriculum (CSEC) mathematics syllabus has been used to guide the selection and sequencing of quality Open Education Resources (OER) to create a free textbook or online course. The resources have been collected and vetted by experienced mathematics teachers and organised to allow a 'reader' gain mastery of each of the CSEC topics and objectives.  

Subject:
Numbers and Operations
Material Type:
Lesson Plan
Author:
Andrew Moore
Date Added:
06/29/2016
Choosing the Most Orange Crystal
Read the Fine Print
Educational Use
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In this video segment from Cyberchase, the CyberSquad must locate a crystal with the highest fraction of orange color.

Subject:
Mathematics
Material Type:
Lecture
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Author:
U.S. Department of Education
WNET
Date Added:
07/08/2008
Compare Fractions with Common Terms
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach fifth graders about comparing fractions with common denominators or common numerators.

Subject:
Mathematics
Numbers and Operations
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
03/06/2015
Compare Fractions without Common Terms
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach fifth graders about ordering fractions with different denominators.

Subject:
Mathematics
Numbers and Operations
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
03/06/2015
Compare Mixed Numbers and Decimals
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach fifth graders about comparing decimals and fractions using inequalities.

Subject:
Mathematics
Numbers and Operations
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
03/06/2015
Comparing Fractions: Bubble Gum Blowing Contest
Read the Fine Print
Educational Use
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In this interactive activity adapted from Anneberg Learner’s Teaching Math Grades 3–5, compare fractions on number lines to determine which class of students wins bubble-gum-blowing contests.

Subject:
Mathematics
Material Type:
Interactive
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media Common Core Collection
Author:
U.S. Department of Education
WGBH Educational Foundation
Date Added:
06/20/2012